THE DEFINITIVE PROOF OF AN ULTRA-FAST OUTFLOW
PDS 456 is host to the archetypical ultra-fast outflow (UFO) observed through its blue-shifted (0.25c and higher) H-like Fe absorption trough. This UFO is both of high statistical significance and per- sistent; it has been observed several times both in the Fe-K and in the soft X-ray band. Resolve will be able for the first time to measure the velocity profiles of the absorption lines, and in the ideal case their inner kinematic structure, which will shed light on the physical nature of the wind. The high throughput of Resolve in the ideal case will further allow to measure the variability of the UFO over shorter time scales than ever before.
TELESCOP= 'XRISM ' / Mission name INSTRUME= 'RESOLVE ' / Instrument name FILTER = 'OPEN ' / Filter name used OBS_ID = '300072010' / Observation identification string OBJECT = 'PDS456 ' / Object name OBSERVER= 'XRISM Collaboration' / PI name OBS_MODE= 'POINTING' / POINTING or SLEW or ALL RA_OBJ = 262.0825 / [deg] Object Right ascension DEC_OBJ = -14.2655 / [deg] Object Declination RA_PNT = 262.077542764009 / Pointing RA DEC_PNT = -14.2656675570254 / Pointing DEC RA_NOM = 262.08175184113 / [deg] Nominal aspect point R.A. DEC_NOM = -14.265410568058 / [deg] Nominal aspect point Dec. PA_NOM = 92.972082028446 / [deg] Nominal aspect point roll. TELAPSE = 518538.921774 / Elapsed time DATE-OBS= '2024-03-11T01:16:50.033312' / Start date DATE-END= '2024-03-17T01:19:08.955086' / Stop date ONTIME = 260078.96656 / On-source time EXPOSURE= 260078.96656 / Exposure time PROCVER = '03.00.013.009' / Processing script version MKFFF = 'ISAS/JAXA' / Origin of First FITS file ORIGIN = 'GSFC/NASA' / Origin of Processed FITS file SOFTVER = 'Hea_21Aug2024_V6.34_XRISM_21Aug2024_V001' / Version of HEADAS used CALDBVER= 'gen20240315_xtd20240815_rsl20240815' / Version of CALDB used DATE = '2024-09-25T02:53:36' / Date and time this file was created or updated SIB2_VER= / SIB2 version JAXA